Shaft-collar.



No. 758,549. PATENTBD APR. 26, 1904.

G. H, MELIUS.

SHAFT COLLAR.

APPLICATIONv FILED MAY 2, 1903.

N0 MODEL.

No. 75am. p

UNITED i STATES Patented April 26, 1904.

PATENT OEEICE.

SHAFT-COLLAR.

SPECIFICATION forming part of Letters Patent No. 758,549, dated April26, 1904.

Application filed May 2, 1903. Serial No. 155,264. (No model.)

To @ZZ whom, t may concern/.-

Be it known that I, CHARLES H. MELIUs, a citizen of the United States,residing at Gloversville, county of Fulton, and State of New York, haveinvented a certain new and useful Improvement in Shaft-Collars,` ofwhich the following is a specification.

My invention relates to a new and useful improvement in shaft-collars,and has for its object to provide a shaft-collar which may be secured tothe shaft in any position without the use of set-screws.

With these ends in view this invention consists in the details ofconstruction and combination of elements hereinafter set forth and thenspecifically designated by the claim.

In order that those skilled in the art to which this inventionappertains may understand how to make and use the same, the con'-struction and operation will now be described in detail, referring tothe accompanying drawings, forming a part of this specification, inwhich- Figure l is a sectional View showing my improved collar appliedto a shaft; Fig. 2, a side elevation of the male part of the collar;Fig. 8, a side elevation of a modified form of the female part of thecollar, a portion being broken away and shown in section; Fig. 4, a faceview of Fig. 3.

Ordinary shaft-collars are generally in the form of a continuous ring,and it is necessary to slip the same over the ends of the shaft, and thecollar is secured in place by transverse set-screws.

In my invention in the construction shown in Figs. l, 2, 3, and 4 Arepresents the male portion of the collar, which is formed in twosemicircular parts, which may be placed around the shaft, so that thetwo halves when upon the shaft will form a circle. The part A isprovided with the annular ange A', which may be polygonal in form for awrenchhold or may be provided with radial holes A2, so that a Spannercan be used. The balance of the part A consists of a taperingexteriorscrew-threaded portion B. C represents the female part or nut,which is interiorly threadanother,r but are a slight distance apart, so

that when the nut C is threaded upon the portion B the halves ofthe partA will be drawn together and tightly clamped upon the shaft. Theexterior of the part C may be made polygonal or may be provided withholes for a Spanner. As the sections of ythe part H are slightlyseparated, the nut will engage the threads of the sections, and

v owing to the convex threaded portion the sections are drawn'togetherwith a few turns of the nut. This part C, as shown in Figs. 3 and 4C, isalso made in halves. so that the same can be arranged around the shaftwithout the necessity of slipping the saine over the end of the shaft.These two halves may be secured together in any suitable manner. Asshown in the drawings, they are mortised one into the other, and pins Dextend through one half and also through the tongue, of the other half,so that the two halves are held securely together.

The advantage of my improved collar is in the great convenience withwhich the collar may be applied and adjusted to any position upon theshaft, doing away with all set-screws.

l Another great advantagev of my invention,

is that the same can be so secured to the shaft that it is almostimpossible to move the same and will retain its position much betterthan a collar depending upon a set-screw for holding the same, and atthe same time my collar Having thus fully described my invention, what Iclaim as new and useful is- A shaft-collar consisting of twolongitudinally-divided parts adapted to fit around a shaft, a taperedthreaded portion formed on my signature in the presence of twosubscribone of the parts and an internally-threaded ing Witnesses.

convex wall formed on the other part the i i last-named part having itssections connected (JHAb' H' MELIUS 5 bytongue and mortise secured by apin, sub- Witnesses:

stantially as described. J OHN L. GETMAN,IntestimonywhereofIhavehereunto affixed WM. F. STEELE.

